Gas burner



June 14, 1927.

J. w; SHARP GAS BURNER Filed 001:- 27. 1926 v a u a n a u a a n a rosnrnxwQsnanri onrnrtanmirnm, PENNSYLVANIA; T

' a asmm Applieatien filed oct b r azflaee; Serial my. 115:4;556.

I The present invent-ionrelates to gas burner attachmentsfor coalburnlng stoves and furnaces, and is; an improvement on Patent" burners of the class described; and which.

1.? heater serves as a support forttlieburners and heatdistribut ng elements ofthedevice.

A still further object of the invention is" to provide an improved type of heater for gasburners as aforementioned, whiclrwill bev extremely durable" and etficientwhen in 'use, and which heatersare of such construe ti'on/as. to permit oftlie ready installing v thereofwitliinthefire boxes of existing types of real burningpstoves and furnaces.

Other objects and advantage'sotthe invention; will be apparent during the course of R thefollowing detailed description, taken'in i connection w1th= the accompany ng drawing forming a part of this specification; and 1n thru the fire box'offa'conventional of 7 coal burning cooking'stove, and showlng the theash pit.

improved burner associated; therewith.

; Figure 2 is a longitudinal section thru the;

of Figure 1.

heater ofstheattachment,;taken on line Figurefi is abottom plan View otfaj modt fiedform ofithe 'gas burner attachment for :use in connection with various sizes and" ,shapesof stovesand furnaces. l I

a Figure 4 is an enlarged fragmentary section taken; on'line 4-40f F1'gure3.

Referring' t0. the drawing in detail, and

herein similar reference Characters 1 desig" nate; cor-responding parts throughoutthe several views; the l letter A- designates av-conventional type of: coal burning cook stove,

and' Bthe improved; gas burner attachment; 5) ,embodying an adjustable supporting bracket;

' C; burners proper D; andapreheatingcha nher E; a

The stove-A is offthe usu l construction; 7 and includes a tire biox- 5*providedJw-ith the f usualfire brick lining 6 and jtheash {pit 7;

improved burner attachment B.

Theash pit Z is provided with the usual bottomwall 8 and the front dooropening 9 whereby the ashes may be readily removed from the ash pit.

In applying the improved gas burner atv tachmentto the stove, the usual 'grate'and grate bars are removed from the stove, and" 'whichr'emoval of the grate and grate bars provides ample space for mounting of the Referringnow to the improved burner attachment B, the same embodies a substantially rectangular shaped partition plate 10 which is preferably formedof fire clayior some other suitable refractoryinaterial, and which plate is disposed horizontally belowthe fire briclrlining 6 withits marginal edges snugly engaging the innerfaces of the lower portionof-the fire b0215 Thus it willbe seen that this'partition plate 110 forms a division between the fire box 5 and aslrpit- 7 v in'a manner for preventing ready circulation oi. air from one to theother The support O,- and whichis arranged in the ash pit 7, embodies a-pair ofvertically achustable-end brackets '11 which are preferably connected at their upper ends by means -ofstrips-12 whichextend longitudinally of theash pit 7. These end bracketsll may=- beadjusted vertically by means of setscrews 13 1 fitted thru the" lower portions of the bracketsand bearing at their'lower ends upon the upper side of the bottomwall 8 of Referring now to the burners properflD, and two ofj'which arershownin the drawing, eachembodies a vertically extending tube 15 provided atits upper end "with a burnercap 16 disposed above the partitionplate 101 The lower end ofeach of the tubes l5=lisipro= vided with a suitable mixing chamber 17 which may be providedwithsuitable operaating meansfor controlling the amount of: air andgas passing thr1u 'the*tube 15.to the burner cap 16. rt i a The heater E, and which is preferably formed of cast metal, is ofirectangularishape in 'plan and ofia sizellequaltothati-of the partition plate 10L: This heater istof: hollow formation: for providing a relatively; flat: chamber 18 provided with fiat; upper and: lower walls 19, andl 20. respectively. Providediat: the longitudinal center of; the a heats e13 are-spaced vertically: extendingconduits i of the heater, and the openings thru the conduits are adapted to align with openings 21 provided in the partition plate 10. These aligning openings 21 and conduits 18, are

adapted to receive the vertically disposed tube of the heater E, with the cap 16 extending above the plate 10 into the fire box 5, and with the mixing chambers 17 at the lower ends of the tubes disposed in the ash pit 7 below the lower wall 20 of the heater.

The heater E is adapted to be supported in a horizontal position by means of the adjustable support C, with the partition plate 10 resting upon the upper side of the heater and in surface contact with the top face of the upper wall 19. By so having the plate 10 and heater E of a size equal to the inner dimensions of the fire box 5, it will be seenf that the plate and heater may be readily; slipped downwardly into the fire box upon removal of the stove top 50.

Arranged in the fire box 5, and positioned one over each of the burner caps 16, are heat distributing burner hoods or mufflers readily be apparent the manner in which the heater E may be heated by reason of intimate contact at its upper surface with the plate 10 which is subjected to the heat created within the the box 5.

Referring to the form of the invention as illustrated in Figures 3 and 4, and which type is adapted for use in those types of stoves and furnaces provided with round fire boxes, the plate 30 and heater E are of circular formation and are adapted to support circular shaped hoods or mufllers 22. The chamber 31 of the heater E is provided with the vertically extending conduits which align with openings provided in the plate 30 for receiving the vertically extending heater proper D. Connected at the axial center of the lower wall 3 1 of the heater E, is a depending feed pipe o5 havwith the radially extending arms of the cross connected at their outer ends with the blower ends of the respective burners D.

iifThus it will be seen that a substantially U- 22 which are also formed of fire clay orfishaped connection is made between each of some other suitable refractory material. As l the burners D and the chamber 31, and that illustrated in Figure 1, these hoods 22 are of substantially rectangular shape, and in-,

clude the side walls 23, end walls 24, and a top wall 25. These walls 28, 24: and 25 are provided with relatively small perforations thru which the heat and flame from the burner caps 16 is projected and allowed to circulate within the fire box 5. The lower ends of the hoods 22 are left open, and by observing Figure 1 it will be seen that the lower edges of the walls 23 and 2% rest upon the upper flat surface of the partition plate 10.

Suitably connected at one end with the lower wall 20 of the heater E, are substantially U-shaped feed pipes 26 having their opposite upwardly turned arms connected with the lower end of the mixing chamber 17 of the burners B. Suitable gas cocks 27 are provided in each of the feed pipes 26 for controlling of the flow of gas from the chamber 18 to the respective burners B. Thesegas cocks 27 may be operated independently, or by means of a suitable link arrangen'i-ent as shown by dotted lines in Figure 1. By observing Figure 1, it will be seen that the burners D are supported by the heater E thru the U-shaped feed pipes 26. V

A suitable supply pipe 30 is connected with the chamber 18 at one end of the heater, and may extend thru the opening 9 and be connected with any suitable source of gas'supply.

Thus it will be seen that gas entering thru the supply pipe 30 is allowed to circulate thru the chamber 18 and be preheated before passing thru the depending U-shaped feed pipes 26 into the burners D.

,the burners are supported solely by the feed {pipe 35. A suitable supply pipe 15 pro- ,tvided with a gas cock 37, may be connected with the heater E for the admission of into the chamber 31 of the heater.

By so having the partition plates 10 and 30 arranged in surface contact throughout the entire upper surface of their respective heaters E and E, it will be seen that upon heating of the plates, that their respective heaters will be heated throughout their entire upper surfaces.

From the foregoing description it will be apparent that a novelly constructed gas burner attachment for coal burning stoves and furnaces has been provided, embodying an improved heating arrangement whereby the is preheated prior to its passage into the burners proper of the attachn'icnt.

Changes in detail may be made to the specific form of the invention herein shown and described, without departing from the spirit of the invention or the scope of the following claims.

I claim:

1. The combination with a coal burning stove including a' fire box and an ash pit provided with a. bottom wall, of a gas burner attachment therefor including a supporting bracket arranged in the ash pit and resting upon the bottom wall thereof, a hollow heater supported horizontally by said bracket, :1 plate of refractory material resting in surface contact upon the upper face of the heater and forming a partition between the fire box and ash pit of the stove, burner tubes extending vertically thru the heater and plate and projecting into said fire box, feed pipes It will connecting said burner tubes with the holing a cross 36 connected at its lower end l low - low heater, and a gas supply pipeconnected with the heater and extending from the ash pit of the stove. a

2.-The combination with a coalburning stove including a firebox and an ash pit provided with aibottom wall, of a. gas burner attachment therefor including a supporting bracket arranged in the ash pit and rest- .ing upon thebottom wall thereof, a hollow heater supported horizontally by Y said bracket, and provided with vertically arranged conduits opening at the upper andlower sides of the heater, a plate ofsrefractory material resting in surface contact upon the upper face of the heater and forining a partition between the fire box and ash pit of the stove, said plate being provided with openings aligning with the conduits provided in'the heater, vertically disposed burner tubes extending freely thru the con- -duits'and aligning openings of said plate and projecting into said-firebox,feed pip-es connecting the'burner tubes with said hollow heater and serving as a support for the tubes,

a gas supply pipe connected with the heater, and means for controlling the flow of gas to the burner tubes. ,7

i 3, The combination with a: coal burning s stove including a fire boxfand anash pit,

of a gas burner attachment therefor includ @ing'a relatively flat hollow heater, means for supporting the heater horizontally with in the ash pit of the stove, a plate of refrac tory material resting in'surface contact upon the upper face of the heater and forming a partition between the fire box and ash pitof the stove, burner tubes extending vertically thru the heater and plate and projecting upwardly intothe fire box, U-shaped feed pipes connected at one end with the lower wall of the hollow heater and having their opposite ends connected with the burner tubes, means for controlling the flow of gas thru each feed pipe to its respective burner tube, and agas supply pipe'connected with the heatersand projecting exteriorly of the stove. o v a p at. Thecombination with a coal burning stove including'avfire box and an ash pit.

providedwith a bottom wall, of a gas burner attachment therefor including a relatively fiat hollow heater provided with vertically arranged conduits, means for supporting the heaterin horizontal spaced relation above the bottom wall of the ash pit, a plate of y 'refractory material resting in surface contact upon the upper face of the heater and forming a partition between 'thefire box and .ash pit of the stove, said plate being provided with openings aligning with the con 1 duits provided in the heater, burner tubes extending freely thru the conduits and alignconnected with the lowerwall of the hollow heater and having their opposite arms connected with the burner tubes below the lower wall of the heater, valves arranged in each feed pipe, and a gas supply pipe cono I teriorly of the stove.

5. The combination with a coal burning stove including a fire box and an ash pit provided with a bottom wall and having a nected with the heater and extending exdooropening, of we gas burner attachment thereof including a supporting bracketiarranged in the ash pit and resting upon the bottom wall thereof, a relatively flat hollow heater ofa size and shape in plan equal to the smallest dimensions of the firebox, supported horizontally upon said bracket in spaced relation above the bottom wall of a or the ash pit, a plate of refractory material and of a size in plan equal to that of the heater, resting in surface contact upon the upper face of the heater and forming a partition between the fire box and ash pit of the stove, burner tubes extending vertically thru the heater and into the firebox, feed pipes arranged in the spacebelow the heater and connecting each burner tube with the heater, means for con plate and projecting trolling the flow of gas to the burner tubes,

rand a gas supply pipe connected with the" lower wall of the hollowheater and extend ing thrua door opening of the ash pit JOSEPH, w. SHARP. 

